30001420 has 12 divisors (see below), whose sum is σ = 63003024. Its totient is φ = 12000560.

The previous prime is 30001403. The next prime is 30001427. The reversal of 30001420 is 2410003.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 30001397 and 30001406.

It is not an unprimeable number, because it can be changed into a prime (30001427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750016 + ... + 750055.

It is an arithmetic number, because the mean of its divisors is an integer number (5250252).

Almost surely, 2^30001420 is an apocalyptic number.

It is an amenable number.

30001420 is an abundant number, since it is smaller than the sum of its proper divisors (33001604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30001420 is a wasteful number, since it uses less digits than its factorization.

30001420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500080 (or 1500078 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 30001420 is about 5477.3552011897. The cubic root of 30001420 is about 310.7281530404.

Adding to 30001420 its reverse (2410003), we get a palindrome (32411423).

The spelling of 30001420 in words is "thirty million, one thousand, four hundred twenty".